Matches 1 - 50 out of 146 1 2 3 >
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7539280 Nuclear fuel rod loading method and apparatus  
A method to load a nuclear fuel rod, comprising, providing nuclear fuel pellets in a fuel plate transfer unit; transferring the nuclear fuel pellets from the fuel plate transfer unit to a fuel...
7492826 Bidirectional buffered interface for crosspoint switch  
A bidirectional crosspoint switch interface employs a pair of backward-connected transimpedance amplifiers of the type disclosed in the L. Enriquez U.S. Pat. No. 6,411,163, and associated scaling...
7424084 Fuel assembly nozzleless handling tool and method  
A device and method to move a fuel assembly of a nuclear reactor, wherein the device eliminates the potential for dropping the fuel assembly due to stress corrosion cracking of the upper guide...
7397884 Aligning device for fuel elements of a pressurized water reactor  
An aligning device for fuel elements allows fuel elements of a pressurized water reactor to be aligned in a comparatively easy and quick manner. To this end, the aligning device for fuel elements...
7386087 Method and device for loading a fuel assembly into the core of a nuclear reactor  
The invention relates to a method and a device for loading a fuel assembly into the core of a nuclear reactor. The inventive method consists in: inserting a dummy assembly ( 4 ) into the loading...
7321650 Apparatus for transferring an article between fluid-filled vessels  
The invention relates to a method for transferring an article from a fluid-filled first vessel into a fluid-filled second vessel or in the opposite direction. The vessel is connected by a...
7139357 Reactor servicing platform  
A method of servicing a nuclear reactor during a reactor outage is provided. The reactor includes a primary containment vessel and a reactor pressure vessel positioned in the primary containment...
6895067 Smooth collet for pulling fuel rods  
A method and apparatus is disclosed for smoothly inserting a fuel rod loader through the skeleton of a fuel cell and then for pulling an attached fuel rod into the fuel rod skeleton while keeping...
6885718 Method and apparatus for transferring an article between fluid-filled vessels  
The invention relates to a method for transferring an article from a fluid-filled first vessel into a fluid-filled second vessel or in the opposite direction. The vessel is connected by a...
6639961 Nuclear fuel pellet loading method and machine for same  
An automated machine for loading nuclear reactor fuel, BP, or APSR pellets from small trays having rows of pellets into reactor rods of long length wherein the pellets are individually counted and...
6619712 Refueling mast retaining tool for a nuclear reactor  
A retaining tool for a telescoping refueling arm in a nuclear reactor, the retaining tool includes a plurality of support members coupled to a plurality of plates. The retaining tool includes a...
6452993 Method of carrying out large-sized apparatus  
When a radioactivated reactor pressure vessel is carried out from a nuclear reactor building of a nuclear power plant, a first opening portion for carrying out the reactor pressure vessel is...
6404836 Removable spent fuel handling machine rail  
A removable rail assembly for use with a spent fuel handling machine, including a support rail, a rail guide carried by the support rail, a rail joint connector supported by the rail guide for...
6359953 Loading machine for transferring closely adjacent elongate articles, in particular fuel elements, and method for simultaneously transferring fuel elements  
A loading machine for simultaneously transferring fuel elements between a reactor core and a storage rack in a nuclear power station has a mast divided into individual mast parts. Each mast part...
6320922 Tool for retracting fuel rods from and inserting fuel rods into a nuclear fuel assembly and methods therefor  
The extraction tool includes an inner rod pivotally mounting at its distal end a pair of collet sections having mechanical clamping jaws. An outer tube may be advanced and retracted axially...
6282254 Slidable comb assembly for burnable poison rod transfer device  
A transfer device for moving a poison rod assembly between fuel cells in a nuclear fuel storage facility, where the poison rod assembly has a plurality of poison rods depending from a web. The...
6252922 Method of handling a nuclear reactor and an apparatus used in the handling method  
A cask is lifted from outside of a nuclear reactor building through an opening which is opened at a portion of the nuclear reactor positioned just above a nuclear reactor pressure vessel. By...
5999584 Reactor head lift apparatus  
A rigging system for reactor closure head and reactor internals lifts. The system includes a plurality of latchbox pendants attached to the lifting structure of an overhead crane. A first set of a...
5898745 Nuclear fuel assembly locator  
A fuel assembly locator for guiding and inserting nuclear fuel assemblies into a grid plate of a reactor vessel during reload. In the preferred embodiment, the fuel assembly locator includes a...
5898746 Method and a device for movement correction and positioning  
The present invention relates to a method and a device for correction of the movements of a suspension device and positioning thereof in a fluid. The suspension device is provided with a first and...
5737377 Nuclear reactor camera mast assembly and loading guide  
A camera mast system permits remote inspection of nuclear fuel assemblies and other components of nuclear reactors. The system includes a camera mast assembly mounted on a refueling mast which may...
5644607 Automatic refueling apparatus  
An automatic refueling apparatus has a travel carriage, a traverse carriage and a fuel assembly grappling apparatus composed of a grapple, an extension pipe and a hoist. The automatic refueling...
5586158 Apparatus for automatically replacing nuclear fuel assemblies  
An automatic nuclear fuel assembly replacing apparatus has a bridge and a trolley movable in X and Y axis directions, respectively. Mounted on the trolley is a nuclear fuel grapple movable in a Z...
5490185 System for automatic refueling of a nuclear reactor  
A refueling system for a nuclear power plant utilizing a data network to provide for automatic control and enhanced monitoring of the entire fuel transfer process. The refueling system of this...
5377240 Transfer carriage with interchangeable baskets  
An improved system for transferring fuel bundles and control blades between a fuel storage pool and a fuel core of a nuclear reactor. The transfer system includes a carriage which is movable...
5291531 Auxiliary platform for boiling water reactors  
An auxiliary platform has a one-ton hoist which may be used in conjunction with a rigid pole handling system. The positioning of the one-ton hoist, as well as the positioning of a trolley on which...
5291532 Fuel transfer system  
A nuclear fuel bundle fuel transfer system includes a transfer pool containing water at a level above a reactor core. A fuel transfer machine therein includes a carriage disposed in the transfer...
5284374 Apparatus for remotely handling components  
The inventive apparatus for remotely handling bar-like components which define a longitudinal direction includes a gripper mechanism for gripping the component including first and second gripper...
5151245 Device for the sealed opening and closing of a passage interconnecting a central channel of a transportable hollow body and a vertical well formed in a fixed structure  
The device comprises, in positions adjacent to the bearing surface (15) of the transportable container (1) on the fixed structure, a first member (16) for plugging the central channel (3) of the...
5139733 Transfer cupboard for a fuel assembly extracted from the core of a nuclear reactor and cooled by an integrated gas circuit  
The transfer cupboard (1) comprises a solid body (2) made of a radiation-absorbing material, in which is provided an axially directed receptacle (3) for receiving the assembly (4). The cupboard (1)...
5135707 Fuel rod alignment template  
A fuel rod alignment template and method for loading fuel rods in a nuclear fuel assembly. Front and rear guide plates are provided with a plurality of holes corresponding to cells in the fuel...
5085824 Nuclear refueling platform drive system  
A drive system for propelling first and second drive trucks of a bridge includes a first motor and transmission for driving the first truck, an independent second motor and transmission for driving...
5019327 Fuel assembly transfer basket for pool type nuclear reactor vessels  
A fuel assembly transfer basket for a pool type, liquid metal cooled nuclear reactor having a side access loading and unloading port for receiving and relinquishing fuel assemblies during transfer.
4994231 Apparatus for blending constituents of varying densities  
A blending/loading system wherein an elongated cylinder or fuel rod is positioned on a turntable underneath a series of hoppers containing the particulates to be blended/loaded. Separate transfer...
4929413 Television alignment of mast assembly in refueling of nuclear reactor  
Refueling apparatus for a nuclear reactor including a bridge and a trolley. The bridge is moveable in tracks along the containment of the pit in which the reactor is immersed in water and the...
4927595 Refueling of nuclear reactor  
Refueling apparatus for a nuclear reactor including a bridge and a trolley movable at right angles to each other over a pit. The trolley carries a mast assembly for engaging, raising, lowering...
4919881 Reactor internals through-hole grapple  
A remotely operated device which attaches to an existing internals lifting rig to safely lift and transport nuclear reactor internals structures. The device includes a grapple assembly uniquely...
4894849 Apparatus and method for transferring nuclear reactor fuel assemblies  
A system for transferring fuel assemblies in a nuclear reactor includes a load control system which compares the current load to the more restrictive of fixed overload and underload limits, and...
4886635 Gripping tool for a device for the remote-controlled removal of samples from a container, in particular from a pressure vessel of a reactor  
A gripping tool for a device for the remote-controlled removal of samples in housings with heads from a container includes a mast having a first coupling part. A second coupling part is opposite...
4824633 Method and apparatus for controlling refuelling machine of reactor  
A method and an apparatus for controlling a reactor refuelling machine including a plurality of grippers comprised of a plurality of telescopic bars which are telescopically actuatable...
4770202 Valves providing transfer ports  
A valve body 10 supports a rotary valve member 20 having a transfer port 22. Sealing between a port 17 of the valve and the member 20 is achieved by a sleeve 30 movable towards and away from the...
4713212 Process for surveillance and control of operations of loading and unloading of the fuel of a nuclear reactor and apparatus applying this process  
Apparatus and process for supervising and controlling the operations of loading and unloading of fuel of a nuclear reactor comprising an information processor 30 formed from several units. A...
4705661 Fast neutron nuclear reactor equipped with a central handling cell and a boxed slab  
A fast neutron nuclear reactor having a vessel filled with liquid metal and sealed in its upper part by a box slab having a central opening in which is placed a plug-cover-core overhanging the core...
4699753 Reactor refueling machine simulator  
The responses of a nuclear reactor refueling machine to commands from a detachable control console are simulated to allow operation of the console for testing and operator training with the console...
4699750 Apparatus for storage, retrieval and deployment of drag gages used in fuel assembly inspection  
In a system for inspecting fuel assembly guide thimbles, an apparatus for handling drag gages insertable within the guide thimbles includes a spider rotatably mounted to an upright support...
4687245 Tool for pulling multiple rods from a nuclear fuel assembly  
A tool (78) for grasping a multiplicity of nuclear fuel rods (42) to remove them from a nuclear fuel assembly (32) and relocate them, preferably, into a fuel consolidation device (86). The tool has...
4673544 Pushing device for sliding fuel rods out of a nuclear reactor fuel assembly  
A pushing device for removing spent fuel rods from a nuclear reactor fuel assembly comprises a plurality of axially shiftable rods disposed in the same geometric pattern and with the same pitch as...
4651400 Multiple fuel rod gripper  
Both an apparatus and a process for removing fuel rods from spent fuel assemblies is disclosed herein. The apparatus of the invention includes a locking plate having a plurality of tapered holes...
4647423 Fuel handling apparatus for a nuclear reactor  
Fuel handling apparatus for transporting fuel elements into and out of a nuclear reactor and transporting them within the reactor vessel extends through a penetration in the side of the reactor...
4647424 Fuel assembly unlatching and handling gripper  
A refueling machine (100) is provided with a latching/unlatching rod (116) which is provided with a hexagonally configured head portion for mated engagement with a hexagonally configured socket...
Matches 1 - 50 out of 146 1 2 3 >